Nut or pipe wrench.



No. 662,90l. Patented Dec. 4, 90. W. S. ARMSTRONG.

NUT R PIPE WRENCH,

(Applicaton led Feb. 8, 1900.

(No Model.)

mkme

rares arent triton,

WALTER S. ARMSTRONG, OF RUTHVEN, IOVA.

NUT OR PIPE WRENCH.

SPECFICATION forming part of Letters Patent No. 662,901, dated December 4, 1900.

Application filed February 8, 1900. Serial No. 4,458. (No model.)

To @ZZ whom, t may concern,.-

Beit known that LWALTER S. ARMSTRONG, a citizen of the United States of America, and a resident of Rnthven,Palo Alto county,lowa, have invented certain new and useful 11nprovements in Nut or Pipe Wrenches, of which the following is a specification.

The object of this invention is to provide improved means for revolving or rotating nuts, bolts, pipes, and fittings conveniently and readily, which means shall be readily reversible and adjustable to fit forms of different sizes and to turn the object forwardly or backwardly.

My invention consists in the construction, arrangement, and combination of elements hereinafter set forth, pointed out in my claims, and illustrated by the accompanying drawings, in which- Figure 1 is a plan of` a complete tool embodying my improvements, portions being broken away to show vthe interior construction. Fig. 2 is an edge view of the tool shown in plan in Fig. 1. Fig. 3 is an edge view of a portion of the tool. Fig. 4 is a detail view of one of the dogs. Fig. 5 is a plan of the stem removed from the tool and carrying its securing and traveling nuts.

In the construction of the device as shown the numeral 10 designates a handle, on one end of which is formed a ring 11. 11 is formed with a movable section 11i, hinged to the fixed portion thereof by pins 12 and detachably connected to the handle lO by a spring-clip 13, formed with seats 14, so shaped and arranged as to spring over and engage studs on the handle and retain the movable section against accidental displacement. The ring 11 is circular, and an annular groove is formed in and opens inwardly from the inner face thereof. A plurality of holes, seats, or apertures are formed in the ring 11 at approximately equal distances of separation, and dogs or detents 15 are pivoted on pins 16,traversing said holes,and are arranged for oscillation through the ring. Springs 17 are mounted on the pins 16 and impinge the dogs and ring at their respective ends, thus tending to press the dogs inwardly. A jawring 18 is mounted in the ring l1 and formed with a peripheral tongue 23, fitting and arranged to slide in the groove thereof. The

The ringA jaw-ring is formed with a movable section 18a, hinged to the main portion thereof by a pin 19, and said hinged portion is flattened on its inner face to form a jaw 20. A screw-stem 2l is mounted with one end entering a hole in the jaw 20 and the other end reduced in diameter and entering a hole in the main portion of the ring 18 and secured in place by a nut 22,countersunk in the tenen or tongue 23.

screwstem 2l andis formed with .a curved rear face fitting the inner surface of the jaw-ring and a forward face, partially plane and partially curved, the plane face being provided for the engagement of nuts or anguiar objects and the curved portion of the forward face being provided with ratchetteeth 25 to engage pipes and other curved faces. The screw-stem 2l is angular in crosssection, and the corners thereof are rounded and screw-threaded and said stem traverses an angular aperture in the jaw 24E, whereby said jaw is prevented from turning on the stem. A slot 2G is formed in the jaw 24, intersecting the aperture thereof through which the screw-stein 2l extends, and a thumb-nut 27 is mounted on the stem within said slot. By rotation of the thumb-nut 27 the sliding jaw 24 is moved longitudinally of the screwstein to adjust the space between the faces of the jaws. The jaw-ring forms less than a complete circle by a space equal to 'the maximum separation of the jaws, and the movable section thereof is provided for convenience in assembling the stem and jaw 24 therein. The movable section 11n of the ring ll is provided that the wrench may be opened to admit a pipe, rod, or other elongated object and should be closed before force is applied to the operation of the tool; A series of notches 28 are formed in the tongue 23 of the jaw-ring and so shaped as to be engaged by the dogs 15 in the oscillation of lthe handle 10 and rotate the jaw-ring and jaws carried. thereby. Flanges 29 30 31 32 are formed on the jaws and extend laterally therefrom. It is the f unotion of the flanges to engage conntersunk nuts or angular bolt-heads that cannot be reached by the jaws of larger dimensions.

l claim as my invention- 1. A wrench comprising the handle, the hinged ring thereon, the hinged jawring Asliding jaw 24 is mounted for travel 0n the IOO ring thereon and formed with a movable section locked to the handle, thejaW-ring mounted loosely in the handle-ring and provided with a movable section and a movable jaw in opposition to said movable section, and

pawl-and-ratchet connections between the rings.

8. A wrench comprising the handle, the ring thereon, the jaw-ring mounted loosely in the handle-ring, and formed with peripheral notches, the dogs on the handle-ring so shaped and arranged as to engage one or another of the notches of the jaw-ring and jaws on the jaw-ring, both of which jaws are movable radially relative to a common axis.

4. A wrench comprising the handle-ring constructed in sections hinged together and formed with an inner groove, a spring-latch for connecting the free end of one section of said ring to the handle, a jaw-ring constructed in sections hinged together and formed with a peripheral tongue shaped and arranged to slide rotatably in the `groove of the handle- 5. In a Wrench a jaw-ring constructed in` sect-ions hinged together and mounted for rotary movement, a jaw on one section of the jaw-ring, a stein transversely of and connecting both sections of the jaw-ring and a jaw mounted for travel on the stem.

6. In a Wrench a jaw, a stem mounted at right angles thereto, ajaw mounted for travel longitudinally of the stern, a nut on the stem and arranged to travel thereon and move the latter jaw, and a ring whereon the lirst jaw and stem are mounted and by which they are moved rotatably, which ring is formed in sections hinged together and detachably connected by said stern.

Signed by me at Des Moines, Iowa, this 19th day of January, 1900.

WALTER S. ARMSTRONG.

Vitnesses:

S. C. SWEET, WV. Il. ELLIS. 

